1. Department of Radiation Oncology Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Tokyo Japan
2. Department of Infection Prevention and Control Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Tokyo Japan
3. Department of Clinical Laboratory Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Tokyo Japan
4. Graduate School of Economics The University of Tokyo Tokyo Japan
5. Hematology Division Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Tokyo Japan
6. Department of Obstetrics and Gynecology Graduate School of Medicine The University of Tokyo Tokyo Japan
7. Department of Radiation Oncology Tohoku University School of Medicine Sendai Japan